Heat pad



FIG. 1 is a perspective view of a first embodiment of a heat pad showingour new design;

FIG. 2 is a front elevation plan view thereof;

FIG. 3 is a rear elevation view thereof;

FIG. 4 is a sectional view along the line 4-4 in FIG. 2;

FIG. 5 is a front elevation view thereof showing a first mode in use;and,

FIG. 6 is a front elevation view thereof showing a second mode in use.

The broken line environmental showing is for illustrative purposes onlyand does not form part of the claimed design.

CLAIM The ornamental design for a heat pad, as shown and described.